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/* EINA - EFL data type library
* Copyright (C) 2008 Cedric Bail
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library;
* if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef EINA_RBTREE_H__
#define EINA_RBTREE_H__
#include <stdlib.h>
#include "eina_types.h"
#include "eina_error.h"
#include "eina_iterator.h"
/**
* @addtogroup Eina_Data_Types_Group Data Types
*
* @{
*/
/**
* @addtogroup Eina_Containers_Group Containers
*
* @{
*/
/**
* @defgroup Eina_Rbtree_Group Red-Black tree
*
* @{
*/
/**
* @typedef Eina_Rbtree_Color
* node color.
*/
typedef enum {
EINA_RBTREE_RED,
EINA_RBTREE_BLACK
} Eina_Rbtree_Color;
/**
* @typedef Eina_Rbtree_Direction
* walk direction.
*/
typedef enum {
EINA_RBTREE_LEFT = 0,
EINA_RBTREE_RIGHT = 1
} Eina_Rbtree_Direction;
/**
* @typedef Eina_Rbtree
* Type for a Red-Black tree node. It should be inlined into user's type.
*/
typedef struct _Eina_Rbtree Eina_Rbtree;
struct _Eina_Rbtree {
Eina_Rbtree *son[2];
Eina_Rbtree_Color color:1;
};
/**
* @def EINA_RBTREE
* recommended way to declare the inlined Eina_Rbtree in your type.
*
* @code
* struct my_type {
* EINA_RBTREE;
* int my_value;
* char *my_name;
* };
* @endcode
*
* @see EINA_RBTREE_GET()
*/
#define EINA_RBTREE Eina_Rbtree __rbtree
/**
* @def EINA_RBTREE_GET
* access the inlined node if it was created with #EINA_RBTREE.
*/
#define EINA_RBTREE_GET(Rbtree) & ((Rbtree)->__rbtree)
/**
* @typedef Eina_Rbtree_Cmp_Node_Cb
* Function used compare two nodes and see which direction to navigate.
*/
typedef Eina_Rbtree_Direction(*Eina_Rbtree_Cmp_Node_Cb) (const Eina_Rbtree
* left,
const Eina_Rbtree
* right,
void *data);
/**
* @def EINA_RBTREE_CMP_NODE_CB
* Cast using #Eina_Rbtree_Cmp_Node_Cb
*/
#define EINA_RBTREE_CMP_NODE_CB(Function) ((Eina_Rbtree_Cmp_Node_Cb)Function)
/**
* @typedef Eina_Rbtree_Cmp_Key_Cb
* Function used compare node with a given key of specified length.
*/
typedef int (*Eina_Rbtree_Cmp_Key_Cb) (const Eina_Rbtree * node,
const void *key, int length,
void *data);
/**
* @def EINA_RBTREE_CMP_KEY_CB
* Cast using #Eina_Rbtree_Cmp_Key_Cb
*/
#define EINA_RBTREE_CMP_KEY_CB(Function) ((Eina_Rbtree_Cmp_Key_Cb)Function)
/**
* @typedef Eina_Rbtree_Free_Cb
* Function used free a node.
*/
typedef void (*Eina_Rbtree_Free_Cb) (Eina_Rbtree * node, void *data);
/**
* @def EINA_RBTREE_FREE_CB
* Cast using #Eina_Rbtree_Free_Cb
*/
#define EINA_RBTREE_FREE_CB(Function) ((Eina_Rbtree_Free_Cb)Function)
EAPI Eina_Rbtree *eina_rbtree_inline_insert(Eina_Rbtree * root,
Eina_Rbtree * node,
Eina_Rbtree_Cmp_Node_Cb cmp,
const void *data)
EINA_ARG_NONNULL(2, 3) EINA_WARN_UNUSED_RESULT;
EAPI Eina_Rbtree *eina_rbtree_inline_remove(Eina_Rbtree * root,
Eina_Rbtree * node,
Eina_Rbtree_Cmp_Node_Cb cmp,
const void *data)
EINA_ARG_NONNULL(2, 3) EINA_WARN_UNUSED_RESULT;
EAPI void eina_rbtree_delete(Eina_Rbtree * root, Eina_Rbtree_Free_Cb func,
void *data) EINA_ARG_NONNULL(2);
static inline Eina_Rbtree *eina_rbtree_inline_lookup(const Eina_Rbtree *
root, const void *key,
int length,
Eina_Rbtree_Cmp_Key_Cb
cmp, const void *data)
EINA_PURE EINA_ARG_NONNULL(2, 4) EINA_WARN_UNUSED_RESULT;
EAPI Eina_Iterator *eina_rbtree_iterator_prefix(const Eina_Rbtree * root)
EINA_MALLOC EINA_WARN_UNUSED_RESULT;
EAPI Eina_Iterator *eina_rbtree_iterator_infix(const Eina_Rbtree * root)
EINA_MALLOC EINA_WARN_UNUSED_RESULT;
EAPI Eina_Iterator *eina_rbtree_iterator_postfix(const Eina_Rbtree * root)
EINA_MALLOC EINA_WARN_UNUSED_RESULT;
#include "eina_inline_rbtree.x"
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif
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